Just wanted to put this out there...
I have been struggling with intermittent loss of functionality of hotkeys, drag and drop, as well as the use of my Windows key for months. I finally ran across a forum post somewhere else that pointed to a text replacement application called Texter put out by Lifehacker.com. I used this program (it is really handy), however once I removed it and rebooted those problems were gone and have not come back. Just wanted to put this info on the forum in case anyone runs into the same issues.
SolidworksGeneral